Luka Ruškan
Software Developer
Experienced Full Stack Developer with six years in professional roles and extensive personal projects across multiple technologies. I build maintainable, scalable frontend applications and contribute to reliable backend systems while working closely with cross-functional teams to deliver production-ready software.
About Me
Experienced Full Stack Developer with six years in professional roles and over eight years managing personal projects across diverse technologies. I follow Scrum/Agile practices, work daily with Git and Docker, and enjoy solving complex frontend challenges while keeping maintainability and performance in focus.
I have hands-on experience with enterprise Angular applications, backend services in Java and Spring Boot, and production reliability using configuration automation and observability tools. Outside of work I tinker with Python projects, contribute to tools, and continuously learn new techniques.
Frontend Architecture
Building modular, maintainable Angular applications for enterprise use.
Site Reliability
Improving observability and automation using ELK, Beats, and Ansible.
Team Player
Working closely with backend, UX and stakeholders to deliver value.
Best Practices
Following industry standards, accessibility and maintainability guidelines.
Work Experience
Senior Frontend Developer
Working on a large-scale digital platform for the Croatian Employment Service (HZZ), modernizing internal workflows and public-facing services. I build scalable enterprise frontend applications with Angular 19 and Angular Material, focusing on performance, maintainability, and collaboration with backend and UX teams.
Selected contributions:
- Built complex frontend modules for employee tools and citizen portals supporting job search and training workflows.
- Implemented scalable Angular architecture following enterprise best practices.
- Collaborated across teams to improve usability, performance, and long-term maintainability.
Site Reliability Engineer
Worked as a core Site Reliability Engineer supporting the nationwide CEZIH platform, focusing on monitoring, automation, and operational stability. I improved system observability using the Elastic Stack and automated infrastructure with Ansible, ensuring reliability and consistency across production environments.
Selected contributions:
- Designed and maintained observability pipelines using Elasticsearch, Logstash, Kibana, and Elastic Beats.
- Automated infrastructure configuration with Ansible to improve system consistency and reliability.
- Supported incident response and system improvements for a high-availability national platform.
Senior Full Stack Developer
Worked on CEZIH, Croatia's central healthcare information system, developing mission-critical frontend and backend components. I built Angular applications and Spring Boot services, contributing to scalable microservice solutions while collaborating with large cross-functional teams.
Selected contributions:
- Developed Angular frontend applications focused on usability, accessibility, and consistency.
- Implemented backend services with Java and Spring Boot for microservice-based systems.
- Supported the full development lifecycle for a complex national healthcare platform.
Senior Frontend Developer as External Consultant for Ericsson Nikola Tesla
Worked as an external frontend consultant on a nationwide healthcare platform for Belarus comprising dozens of interconnected applications. I built scalable Angular based architectures for enterprise healthcare systems, focusing on performance, security, and long term maintainability while collaborating with distributed teams.
Highlights:
- Designed modular Angular frontend architecture supporting complex, nation scale healthcare workflows.
- Developed applications handling sensitive medical data with strong emphasis on security and performance.
- Contributed to an AI-powered medical imaging solution for cancer detection in collaboration with backend and data science teams.
Frontend Lead Developer
Served as a frontend lead developer across multiple commercial projects, including a complex ordering platform for hospitality businesses. I built Angular and WordPress solutions, worked directly with clients, and coordinated development in a collaborative team environment.
Highlights:
- Led frontend development for a multi-feature ordering system used in hospitality and commerce workflows.
- Delivered custom Angular and WordPress web tools, including projects for the medical sector.
- Collaborated with clients and teams using Git and Jira to ensure smooth delivery and communication.
Software developer
Worked as a freelance software developer building custom WordPress themes and plugins, including a complex e-commerce platform. I handled deployment, maintenance, and ongoing support to ensure stable production delivery.
Highlights:
- Developed custom WordPress themes and plugins for tailored business needs.
- Delivered and maintained a complex e-commerce solution in production.
- Provided ongoing support, updates, and deployment management.
Education
Undergraduate study (Faculty of Electrical Engineering)
Faculty of Electrical Engineering, Computer Science, and Information Technologies Osijek
2015 - 2021
Studied software-related topics; project work included a Smart Home voice assistant that received a Dean's Award.
- Dean's Award for Smart Home voice assistant project
Computer technician
Electrical engineering school Nova Gradiška
2011 - 2015
High school diploma in computer science and programming, focused on foundational software and computer system skills.
Certifications & Awards
- Fundamentals of Microfrontends - Board Infinity (2024)
- Spring Framework 5 - Udemy (2023)
- Patent - Burner for pellets (State IP Office, 2018)
- Dean's Award - Smart Home project (2017)
- Networking certificate - Microsoft (2014)
Recommendations
Ilija Ćaćić
Head of DevOps eBusiness
Ericsson Nikola Tesla d.d.
"I have been very satisfied with his performance and contribution to the team. He demonstrated strong technical capabilities, accountability, and the ability to operate effectively within large, mission-critical systems. He is a dependable professional who can be trusted with complex tasks and responsibilities."
Josip Dadić
CEO
SAFRAN d.o.o.
"Working with him was a great experience. He delivered excellent WordPress solutions, including a complex e-commerce platform, with impressive technical skill and reliability. What stood out most was his ownership, professionalism, and genuine dedication to quality. He is someone you can fully trust to deliver, and I highly recommend him."
Get In Touch
Open to new opportunities and collaborations. Reach out for freelance or full-time roles and project inquiries.
Contact Information
Let's Work Together
Available for freelance and full-time opportunities. If you have a project or role that matches my experience, please get in touch.